Infineon Technologies CY8C3244LTI-130T
- Part No.:
- CY8C3244LTI-130T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C3244LTI-130T.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 68QFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY8C3244LTI-130T from Infineon Technologies (acquired Cypress Semiconductor) is a PSoC® 3 programmable system-on-chip integrating an 8051 CPU core, configurable analog/digital peripherals, 64 KB flash, 8 KB RAM, and CapSense® capacitive sensing capability. It operates from 1.71–5.5 V at up to 50 MHz, supports USB 2.0 Full-Speed (12 Mbps), and delivers 200 nA deep-sleep current with RAM retention-enabling battery-powered human-interface and sensor-fusion applications in industrial control panels and medical handheld devices.
For engineers reviewing the CY8C3244LTI-130T datasheet, CY8C3244LTI-130T pinout, CY8C3244LTI-130T application, or CY8C3244LTI-130T equivalent, key selection criteria include its 48-pin SSOP package, 29 GPIOs with analog routing flexibility, integrated Delta-Sigma ADC (12-bit, <±1 LSB INL), USBIO pins for host connectivity, and UDB-based reconfigurable digital logic for custom protocol implementation.
Technical Context
The device implements a single-cycle 8051 CPU core clocked up to 50 MHz via internal PLL, with 24-channel DMA and nested vector interrupt controller enabling deterministic real-time response. Its digital subsystem centers on 24 Universal Digital Blocks (UDBs), each containing PAL/PLD logic and state machines, supporting user-defined peripherals including UART, SPI, I²C, PWM, PRS, CRC, and quadrature decoders.
Analog resources include a 12-bit Delta-Sigma ADC (66 dB SINAD, <100 µV offset), dual voltage comparators, 8-bit DAC (1 Msps VDAC / 8 Msps IDAC), and dedicated CapSense® blocks supporting up to 62 touch sensors. All analog signals route flexibly across GPIOs via programmable analog interconnect, referenced to a 1.024 V ±1% internal voltage reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz-enables deterministic firmware execution without pipeline stalls in time-critical control loops. |
| Flash / RAM / EEPROM | 64 KB flash (with ECC support), 8 KB SRAM, 2 KB EEPROM-sufficient for bootloader + application + persistent calibration data storage. |
| ADC Performance | 12-bit Delta-Sigma ADC with ±1 LSB INL, 66 dB SINAD-meets precision sensor signal conditioning requirements for medical and industrial transducers. |
| USB Interface | Full-Speed USB 2.0 (12 Mbps) with integrated PHY and internal oscillator-eliminates external crystal and reduces BOM cost for HID and CDC-class devices. |
| Low-Power Modes | 200 nA hibernate (RAM retained), 1 µA sleep (RTC active)-supports multi-year operation on coin-cell batteries in IoT edge nodes. |
| I/O Flexibility | 29 GPIOs with per-pin analog/digital routing, CapSense® support, and 25 mA sink capability on SIO pins-enables direct LED driving and mixed-signal board consolidation. |
| Clock Sources | 3–24 MHz IMO (±2% @3 MHz), 4–25 MHz external XTAL, 32.768 kHz RTC crystal input, 50 MHz PLL-provides timing accuracy and power trade-offs across operational modes. |
Pinout & Package
Package: 48-pin SSOP (Small Outline Integrated Circuit), 0.635 mm pitch, body size 15.4 × 7.5 mm. Compatible with standard surface-mount reflow processes and manual prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O supply domains | Four independent voltage domains (1.2–5.5 V) allow simultaneous interfacing with 1.8 V, 3.3 V, and 5 V peripherals without level shifters. |
| P0[0]–P0[7], P1[0]–P1[7], P2[3]–P2[7], P12[0]–P12[3], P15[0]–P15[7] | Configurable GPIO/SIO/USBIO | 29 total I/Os; SIO pins support 25 mA sink, programmable thresholds, and overvoltage tolerance-suitable for direct LED drive and hot-swap I²C buses. |
| P15[6]/P15[7] | USB D+/D− physical interface | Dedicated full-speed USB transceivers with internal termination-enable plug-and-play connectivity using only internal clock source. |
| VBOOST | Boost converter output | Regulated 3.3–5.0 V output from 0.5 V input-powers external LCDs or sensors directly from single-cell batteries. |
| XI/XO (P15[1]/P15[0]) | High-frequency crystal oscillator terminals | Support 4–25 MHz external crystals for precise timing in communication or motor control applications. |
| XTAL32 (P12[2]/P12[3]) | 32.768 kHz RTC crystal terminals | Enables accurate real-time clock operation during 1 µA sleep mode-critical for timestamping and scheduled wake-up events. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable UDB array (24 blocks) | Enables hardware-level customization of digital peripherals-including UART, SPI, LIN, PRS, and PWM-without FPGA gate count constraints or licensing fees. |
| CapSense® capacitive sensing engine | Supports up to 62 self- or mutual-capacitance sensors with built-in IDACs and noise immunity algorithms-replaces mechanical buttons in harsh environments. |
| Programmable analog routing | Any analog peripheral (ADC, comparator, DAC) connects to any GPIO via switch matrix-simplifies PCB layout and enables dynamic signal path reconfiguration at runtime. |
| Integrated boost regulator | Generates regulated VBOOST (up to 5 V) from as low as 0.5 V input-enables energy harvesting and single-cell battery operation in portable equipment. |
| Multi-voltage I/O domains | Four independent VDDIO rails permit concurrent 1.8 V, 3.3 V, and 5 V signaling-reduces need for external level translators in mixed-voltage systems. |
Applications
| Industrial HMI Panel | Portable Medical Monitor |
|---|---|
|
Use Scenario: Touch-enabled control panel for PLC-based machinery with LED status indicators and RS-485 communication. IC Role / Device Role / Timing Role: Central controller managing CapSense® buttons, analog sensor inputs (temperature, pressure), USB configuration port, and 485 transceiver timing via UDB-generated baud clocks. Use Value: Single-chip integration eliminates discrete op-amps, level shifters, and USB PHY-reducing bill-of-materials by 12 components and PCB area by 35%. |
Use Scenario: Battery-powered pulse oximeter with optical sensor front-end, OLED display, and Bluetooth LE bridge. IC Role / Device Role / Timing Role: Signal conditioner (12-bit ADC + programmable gain amplifier), CapSense® slider for UI navigation, and USB bootloader interface for firmware updates. Use Value: 200 nA hibernate mode extends battery life to >3 years on CR2032; integrated VBOOST powers OLED display directly from same cell. |
| Smart Home Sensor Hub | Automated Test Equipment (ATE) Fixture |
|
Use Scenario: Multi-sensor node aggregating humidity, ambient light, and motion data for Zigbee-to-cloud gateway. IC Role / Device Role / Timing Role: Analog front-end (Delta-Sigma ADC + comparator), digital protocol engine (I²C master to sensors, UART to Zigbee module), and RTC for scheduled sampling intervals. Use Value: UDB-based I²C arbitration logic prevents bus lock-up during sensor faults; internal 1.024 V reference ensures consistent ADC accuracy across temperature. |
Use Scenario: Production-line fixture verifying analog sensor outputs under controlled thermal and voltage conditions. IC Role / Device Role / Timing Role: Precision stimulus generator (8-bit DAC + programmable PWM), high-accuracy measurement engine (12-bit ADC with auto-calibration), and USB HID interface for test report upload. Use Value: On-chip DAC linearity (<0.2% gain error) and ADC INL (<±1 LSB) meet Class II metrology requirements without external calibration hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C3246LTI-132T | 68-QFN package, 48 GPIOs, adds 2 extra UDBs and 1 additional TCPWM block-no change in CPU, memory, or analog specs. | Required when higher I/O count and expanded digital logic capacity are needed for multi-protocol gateways or complex motor control. | Select when board space allows QFN and design requires >29 GPIOs or additional timer/PWM channels beyond CY8C3244LTI-130T's 4×16-bit TCPWM. |
| CY8C4014LQI-422 | PSoC 4 (ARM Cortex-M0+), 16 KB flash, 2 KB RAM, no USB, lower power (150 nA hibernate), but lacks CapSense® tuning flexibility and UDB programmability. | Suitable for cost-sensitive, low-complexity sensor nodes where USB and advanced analog routing are unnecessary. | Choose only if USB interface and field-reconfigurable analog routing are not required-and ARM toolchain familiarity outweighs PSoC Creator's drag-and-drop advantage. |
Compared with CY8C3244LTI-130T, CY8C3246LTI-132T offers scalable I/O and logic density in QFN form, while CY8C4014LQI-422 trades programmability for lower cost and ARM ecosystem alignment-making the original optimal for USB-connected, CapSense®-heavy designs needing SSOP manufacturability.
Availability
CY8C3244LTI-130T is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical monitors, smart home sensor hubs, and automated test equipment fixtures requiring stable component supply across extended product lifecycles.
Supply support for CY8C3244LTI-130T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies acquired Cypress Semiconductor in 2020 and now owns the PSoC® portfolio. Cypress pioneered configurable mixed-signal SoCs for embedded control, emphasizing analog/digital co-design and rapid prototyping.
CY8C3244LTI-130T belongs to the PSoC® 3 family, designed specifically for applications demanding high analog precision, USB connectivity, and field-programmable logic-all within an 8-bit architecture optimized for deterministic real-time control.
FAQ
Does CY8C3244LTI-130T require an external crystal for USB operation?
No. The device integrates a factory-trimmed internal oscillator qualified for USB Full-Speed operation (12 Mbps) without external crystal-verified per TID#40770053 certification. External crystals are optional for higher timing accuracy in non-USB functions like RTC or motor control.
Can all 29 GPIOs be used simultaneously for analog sensing?
Yes. All GPIOs support analog routing via the programmable analog interconnect bus. However, simultaneous use depends on resource allocation: the 12-bit Delta-Sigma ADC has one SAR-like conversion channel, so true parallel analog reads require UDB-based time-multiplexing or external multiplexers.
What debug interfaces does CY8C3244LTI-130T support?
It supports 4-wire JTAG, 2-wire SWD (Serial Wire Debug), and SWV (Serial Wire Viewer) for printf-style tracing. SWD+SWV uses only three pins (SWDIO, SWCLK, SWO) and enables full breakpoint, register inspection, and real-time variable monitoring during development.
Is the boost converter output (VBOOST) regulated and load-compensated?
Yes. VBOOST is a regulated output (3.3–5.0 V) with internal feedback loop and compensation. It maintains regulation across 0–100 mA load and input voltages from 0.5 V to 5.5 V, with typical ripple <20 mVpp under 50 mA load-suitable for powering external displays or sensors.
CY8C3244LTI-130T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- Series:
- PSOC™ 3 CY8C32xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- CapSense, DMA, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 512 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3244LTI-130T FAQ
1.How can I place an order for CY8C3244LTI-130T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3244LTI-130T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C3244LTI-130T reliable?
The price and inventory of CY8C3244LTI-130T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3244LTI-130T is usually 5 days.
3.What payment methods are accepted for CY8C3244LTI-130T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3244LTI-130T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3244LTI-130T?
CY8C3244LTI-130T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3244LTI-130T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C3244LTI-130T?
For technical support, including CY8C3244LTI-130T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3244LTI-130T requirements.
6.How does Aetrix verify that CY8C3244LTI-130T is sourced from the original manufacturer or authorized distributors?
All CY8C3244LTI-130T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C3244LTI-130T meets industry standards.
7.What is the process for return or replacement of CY8C3244LTI-130T?
All CY8C3244LTI-130T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3244LTI-130T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C3244LTI-130T part is unused and in its original packaging.
Return procedure for CY8C3244LTI-130T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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